Hair dryer



FIG. 1 is a front elevational view of a hair dryer showing my new design, the continuous cord being partially indicated by dot-dash lines;

FIG. 2 is a left side elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a perspective view of the dryer in extended condition. 

The ornamental design for a hair dryer, as shown and described. 